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Stock-Based Compensation (Schedule of Share Based Compensation Expense) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Share-based Payment Arrangement [Abstract]      
Stock based compensation $ 136.1 $ 117.0 $ 101.2
Tax benefit recognized in net earnings $ 28.6 $ 24.6 $ 21.3